The utility of fluorine-18-fluorodeoxyglucose positron emission tomography in the diagnosis and monitoring of large vessel vasculitis: A South Australian retrospective audit.

Fluorine-18-labelled deoxyglucose positron emission tomography has a role in the diagnosis of large vessel vasculitis, particularly in patients with a high suspicion of active large vessel vasculitis who do not meet the ACR criteria. FDG-PET may have a role in monitoring disease activity in selected patients with large vessel vasculitis especially in identifying occult sites of large vessel inflammation or to titrate prednisolone therapy.